3-143 Muhammad ibn Ali Majiluyih - may God be pleased with him - narrated that his uncle Muhammad ibn Abil-Qasim quoted on the authority of Ahmad ibn Aba Abdullah, on the authority of his father, on the authority of Sa’dan ibn Muslim, on the authority of Hatam that Aba Abdullah as-Sadiq (MGB) said,

“Good deeds will not be perfected unless youdo the following three acts: underestimate them, cover them up, and expedite them. They will be well-noticed by those to whom you do a favour once you underestimate them. They will be perfected when you cover them up. And they will be enjoyed by those to whom you do the favour if you expedite them. Otherwise, you would spoil them.”